Inequalities of wealth and rank certainly exist, and have probably existed in most pastoralist societies, but except in periods of military conquest(紫色这一句都是插入语), they(这个指代,指代的是inequalities,不是periods of military) are normally too slight to generate the stable, hereditary hierarchies that are usually implied by the use of the term class.
这句话相当于 Inequalities of wealth and rank certainly exist, and have probably existed in most pastoralist societies, but they are normally too slight to generate the stable, hereditary hierarchies that are usually implied by the use of the term class,except in periods of military conquest.
这句话的大意是:不平等的确存在于大部分的p社会中,但是他们一般不足以行成稳固的,建立在阶级基础上的世袭制,但是除了在军事期间以外。也就是说军事期间是最稳固的